My cooper 9534ds just melted and smoked inside my wall.

I can offer resources:

1) Test switch that was removed, and test for hot connection to narrow down options.

What speed was fan stuck in when switch was removed? Let's say medium speed.
Which connection at fan is hot? Use voltage tester to find hot connection at fan, and match that up with wire-color on switch that was removed.
One and only one wire on 3-speed fan switch connects to hot. And the hot wire is the only wire that connects to each other wire as switch cycles through pull-chain sequence. All pull chain switches follow same sequence: off, low, medium, high.
Let's say old switch was stuck in medium, and you know which color wire connects to hot.
Test switch with continuity tester to see which wire(s) have continuity with hot wire: some switches, it will be 2 wires, and other switches it will be 1 wire. Match where wire(s) were connected, and map that to tests on new switch.

2) Open following link for illustrations and some other links.
http://waterheatertimer.org/How-to-wire-Cooper-277-pilot-light-switch.html#3-speed

Question posted under 3-speed switch

1) Are you replacing the 3-speed switch?
This is a field with much discussion because Westinghouse 4-wire fan switches vary.
Process of elimination is needed to find hot line. From there you test each wire to the hot line wire to determine which wire or combination of wires makes up low, medium, and high speed.
Open following links for some resources:
http://waterheatertimer.org/How-to-wire-Cooper-277-pilot-light-switch.html#3-speed
http://www.ceiling-fans-n-more.com/ceiling-fan-pullchain-replacement-and-repair.php
http://www.atlantalightbulbs.com/ecart/catalog/westinghouse-6.html

2) Or are you looking at fan connection wiring at ceiling?
Green wire goes to bare ground.
Fan should have hot and neutral.

Hot line should be black.
Neutral should be white.

Red usually goes to light
Blue is normally not there.

Where is the white neutral wire?

Take multimeter set to read ohms and test black wire to each other wire.
Process of elimination should reveal correct wiring.

well, they could have. but before you throw it out, go to the hardware store, and buy a new pull switch. either that, or just run it with the high and low speeds. It shouldn't hurt it at all. But, if there is any clicking sounds, or wierd noises coming from it , DON'T USE IT!! it may catch fire. but it did last a long time. 20 years is good for a modern celing fan. though I like my antique 1907 westinghouse 72 inch 2 blade fan. It hasn't died yet!!!

if you have pull chain switches in addition to the remote control, your pull chain switch may be set to Medium, which would make the fan run on a maximum of medium speed.

I found out that the capacitor and switch is shortened. I un-shortened, and it got to low, mediium, and off.

Hello Brother,
Installation:
Hang your ceiling fan on the Quick Connect fan bracket and wire the ceiling fan according to the manufacturer's instructions. The three wires coming from your ceiling should match the three wires coming from your ceiling fan: black (positive or hot), white (neutral or negative) and green (ground wire).


Use the high, medium and low keys on the remote to adjust the Hampton Bay fan speed, then use the light key to dim the light and the off key to turn off the fan.


For REMOTE CONTROL FANS you cannot use with any variable speed or slide wall switches. The remote control function must be used with on & off switch outlets only.


Speed Controls Click here Capacitors Link
I hope This Helped you,Thanks for Contacting FixYa...

Sounds like the fan is defective. All internal wiring from the switch to the motor is factory installed. The fan has power going to it. Just to make sure, double check the wiring from the ceiling fixture to the fan.
Problem could be a faulty switch on the fan or faulty motor(bad winding for med. speed). Try reverse switch on the fan to operate the opposite direction and see if medium speed works. If medium does work in opposite direction, it pretty much points to a defective fan. In any case, unless you discover that the ceiling wires were reversed going into the fan, I'd say new fan to the returns dept.

if the three speed switch is functioning the middle speed winding is bad.  Either replace the fan or hook up a wall speed control and keep the fan on high.

If this fan has a pullchain that also controls the fan speed, and you have a remote, the pullchain has to be set for the highest speed. If it is set at medium or low, it will mess with the remote operation. Note: usually high speed is the first pull after the "off" position.

I recently replaced my hampton bay fan for the same reason (slow at all speeds) and discovered scorched and melted capacitors and wiring inside the fan. My suggestion is to stop using fan and replace immediately.